/**
 * Copyright (c) 2021 OceanBase
 * OceanBase CE is licensed under Mulan PubL v2.
 * You can use this software according to the terms and conditions of the Mulan PubL v2.
 * You may obtain a copy of Mulan PubL v2 at:
 *          http://license.coscl.org.cn/MulanPubL-2.0
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PubL v2 for more details.
 */

#ifndef OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_UTL_I18N_
#define OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_UTL_I18N_

#include "sql/engine/expr/ob_expr_operator.h"
#include "share/object/ob_obj_cast.h"

namespace oceanbase {
namespace sql {

class ObExprUtlI18nStringToRaw : public ObStringExprOperator {
public:
  explicit ObExprUtlI18nStringToRaw(common::ObIAllocator& alloc);
  virtual ~ObExprUtlI18nStringToRaw();
  virtual int calc_result_type2(
      ObExprResType& type, ObExprResType& type1, ObExprResType& type2, common::ObExprTypeCtx& type_ctx) const;
  static int calc(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
      common::ObCastCtx& cast_ctx, const ObSQLSessionInfo* session_info);
  virtual int calc_result2(
      common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2, common::ObExprCtx& expr_ctx) const;

private:
  DISALLOW_COPY_AND_ASSIGN(ObExprUtlI18nStringToRaw);
};

class ObExprUtlI18nRawToChar : public ObStringExprOperator {
public:
  explicit ObExprUtlI18nRawToChar(common::ObIAllocator& alloc);
  virtual ~ObExprUtlI18nRawToChar();
  virtual int calc_result_type2(
      ObExprResType& type, ObExprResType& type1, ObExprResType& type2, common::ObExprTypeCtx& type_ctx) const;
  static int calc(common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2,
      common::ObCastCtx& cast_ctx, const ObSQLSessionInfo* session_info);
  virtual int calc_result2(
      common::ObObj& result, const common::ObObj& obj1, const common::ObObj& obj2, common::ObExprCtx& expr_ctx) const;

private:
  DISALLOW_COPY_AND_ASSIGN(ObExprUtlI18nRawToChar);
};

}  // namespace sql
}  // namespace oceanbase
#endif /* OCEANBASE_SQL_ENGINE_EXPR_OB_EXPR_UTL_I18N_ */
